Stop and waste valve



May 8, 1923- W. H. SMITH NIT Patented May 8 1923.

v UNITED; s'r

insane WILLIAM n; sivrrrn, or ni'isr cLEvEnAnnoHrolf sroPAlnn Was'riE VALVE.

' Application filed Apri123, 1320., Serial N20. 375,937.

To all whom it may concern Be it'knownthat 1, WILLIAM SMITH,

a, citizen of the United States, residing at v being had to the accompanying drawings.-

This invention relates to valves andmore particularly to stop or waste valves of the compression type.

Some of the objects of the present inven tion are to provide an exceptionally quick acting valve capable of opening or closing by 180 rotation of'the valve stem and which automatically opens the waste outlet when the valve is closed and closes said outlet when the valve is open; to provide a valve which shall be simple in construction and inexpensive to manufacture; while further objects and advantages will appear as the description proceeds.

In the accompanying drawing wherein I have shown an illustrative embodiment of my invention but without intent to limit myself thereto, Fig. 1 is a longitudinal sectional view of my improved valve shown in the closed position; and Fig. 2 is a similar view but showing the valve in the open po-' sition.

Describing the parts by reference characters, my improved valve comprlses a casing 1 having an inlet nipple 2 and an outternal thread 7 is preferably a four pitch thread so that the valve will move from closed position to maximum open position by 180 rotation thereof, the purpose of this will become apparent as the description proceeds. Inside the casing 1 is formed a partition 9 having therein an aperture 10 surrounded by a valve seat 11 which is perpendicular to and coaxial with the barrel 6.

Located inside the barrel is a movable valve member which comprises an externally threaded portion 12 meshing with the threads 7 and an axial extension at each end, one of the extensions. 13, being formed with a seat engaging portion 14:, and the other extension, 15, being cylindrical in of the threaded portion 12 whereby there ispmducedan" abrupt shoulder '16. Secured to "the projection 15 is the operating handle .17, said handleand projection :being formed, the latte'r witha prismatic socket 18 and 1 the former with a; prismatic shank 19 adapted to enter said socket, and be secured therein by a set screw. (not shown). I

A.vertical'bypass-channel 21 is disposed TENTIFFEEQ) w shape andof sizethe 0n the inner side of the barrel 6 and is 'of'n:

sufficient; length to extend from the valve seat 11 to a point beyond the externally v threaded portion 12 of the valve member,

when said valve is in the closed position as shown in Fig. 1. The prismatic socket. 18 is of sufiicient depth to extend inwardlyPto a point substantially adj acent the shoulder municates with the socket and the atmos phere. The shank 19 on handle 17 is formed with opposed flat portions 2525 to permit such communication on the one side of said shank and on the other to form an abutment for the set screw previously mentioned. v

The usual gland nut 26 is threaded on the barrel 6 and embraces the projection 15 with suitable packing material 27 and a washer 28 to p'reventleakage.

When the valve is in the closed position as shown in Fig. 1 it will be observed that the pipe line ,5 is drained through the bypass 21, aperture 22, socket 18, and aperture 23 to the atmosphere but; when the valve is open as, shown in Fig. 2 the apertures 22 and 23 are exterior of the va1ve6 and the bypass accordingly closed.

Having thus described my invention, what I claim is: 1

1. A valve comprislng acasmg, a parti-' tion' wall in said casing having an aperture therein. a membermovable toward and from.

said aperture to open and close the same,.a if reduced proiection, on sald member extending v exteriorlv of said casing, a socket formed in said projection. an aperture ad-' iacent the outer end of. said socket communicating with the atmosphere a second aperture adiacent the inner end of said socket communicating with a bv-pass about said member when the valve is in the closed l member,

said projection, both said apertures being exterior of said packing ring when said valve is in the open position. i

2. A valve comprising a casing, a partition wall in said casing having an aperture therein, a rotatable member movable toward and from said aperture to open and close the same in 180 rotation thereof, a socket of comparatively large cross section formedalong the longitudinal axisof saidan aperture of coi'nparatively small cross section at each end of said socket, said apertures being in communication onewith one side oi? said partition and the other with the exterior of the casing when said valve is in the closed position, and both be'ing exterior of said casing when said valve is in the open position.

3. A-valve comprising'a casing having an internally threaded neck, a partition wall in said casing having an aperture in line with said neck, a valve member threaded in said neck and movable toward and from said aperture to open and close the same, said member having a hollow stem, an apertured plate surrounding said stem and resting' on said neck, a packing ring on said plate, a gland nut secured on the exterior of said neck and pressing on said packing, said stem having an aperture adjacent its outer end communicating with the atmosphere and a second aperture adjacent its inner end, a by-pass communicating with said inner aperture and one side of said partition when said valve is in closed position, both said apertures being exterior of said packing when said valve is in the open positi'on. p

In testimony whereof, I hereunto afiix my signature.

WILLIAM H. SMITH. 

